/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.visualization.graphviz.color;

import java.util.Collection;
import java.util.Map;
import org.neo4j.graphdb.RelationshipType;

/**
 * Wrap a {@code Map<String, Color>} to expose it as a {@code ColorMapper<RelationshipType>}.
 */
public class SimpleRelationshipTypeColorMapper implements
        ColorMapper<RelationshipType>
{
    private final Map<String, Color> mappings;

    /**
     * Map relationship types represented as strings to colors.
     *
     * @param mappings relationship type names to color mappings
     */
    public SimpleRelationshipTypeColorMapper( Map<String, Color> mappings )
    {
        this.mappings = mappings;
    }

    @Override
    public Color getColor( RelationshipType type )
    {
        return mappings.get( type.name() );
    }

    @Override
    public Collection<Color> getColors()
    {
        return mappings.values();
    }
}
